Cisco Unified Communications Manager SIP Line Messaging ... Cisco Unified Communications Manager SIP

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  • Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) First Published: May 29, 2014

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  • THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

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  • C O N T E N T S

    P r e f a c e Preface vii

    Audience vii

    Organization vii

    Conventions vii

    Obtain Documentation and Submit Service Request ix

    C H A P T E R 1 SIP Standard Line Interface 1

    Definitions/Glossary 1

    New and Changed Information 3

    Cisco Unified Communications Manager Release 10.5(2) 3

    Features Supported in Previous Releases 3

    Cisco Unified Communications Manager Release 10.0(1) 3

    Cisco Unified Communications Manager Release 9.x 4

    Cisco Unified Communications Manager Release 8.6(1) 4

    Standard Interface Compliance Summary 4

    Proprietary and Nonstandard SIP Headers and Identification Services 10

    Remote-Party-ID Header 11

    Calling Line and Name Identification Presentation 12

    Calling Line and Name Identification Restriction 13

    Connected Line and Name Identification Presentation 13

    Connected Line and Name Identification Restriction 13

    CPN Number Presentation 14

    Supported Media Types 14

    Supported Event Packages 16

    Supported Content Types 17

    SIP Message Fields 17

    Request Messages 18

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) iii

  • INVITE 18

    ACK 19

    Response Messages 20

    180 Ringing 20

    183 Session Progress 22

    2xx 22

    Message Timers 24

    Message Retry Counts 25

    Standard Feature Scenarios 26

    Registration 26

    Source Device ID for RFC3261-Compliant Phones 27

    MultiLine Registration 27

    REGISTER Refresh (Keepalive) 27

    Device Binding 27

    Multiple Bindings for the Same AOR 28

    Contact: * 28

    Basic Call 28

    Simple Hold and Resume 28

    Transfer 28

    Attended Transfer 29

    Early Attended Transfer 29

    Blind Transfer 30

    Three-Way Calling 30

    Call Forwarding 31

    Message Waiting Indication 32

    Endpoint Returns 302 Redirect 32

    Endpoint Returns 486 Busy 32

    Announcements for Certain Call Setup Failures 33

    INFO Packages 33

    INFO Conference Package Negotiation 34

    G.Clear Calls 36

    Example SDP for G.Clear Call 37

    Early Offer Support for G.Clear Calls 37

    BFCP 37

    Multilevel Precedence and Preemption Using Resource Priority 38

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) iv

    Contents

  • Outgoing Identity and Incoming CLI for SIP Calls 38

    URI Dialing 39

    Anonymous Call Rejection for a Directory Number 40

    SDP Transparency for Declarative Attributes 41

    Cisco Unified Communications Manager Version in User-Agent and Server Headers 42

    CTI Video 43

    iX Channel Support 44

    isFocus Support 44

    Configurable NonPreemptable Numbers 44

    SIP BPA/488 Error Handling 45

    Non-SRTP Call Block 45

    Multiple Codecs in Answer 45

    Confidential Access Level 46

    AES 256 GCM Support for SRTP and TLS 48

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) v

    Contents

  • Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) vi

    Contents

  • Preface

    This document describes the implementation of the Session Initiation Protocol (SIP) for line side devices in Cisco Unified CM.

    • Audience, page vii

    • Organization, page vii

    • Conventions, page vii

    • Obtain Documentation and Submit Service Request, page ix

    Audience This document provides information for developers, vendors, and customers who are developing applications or products that integrate with Cisco Unified CM using SIP messaging.

    Organization This document consists of the following chapter.

    DescriptionChapter

    Provides an overview of SIP line messages and standards compliance.

    Conventions This document uses the following conventions.

    DescriptionConvention

    Commands and keywords are in boldface.boldface font

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) vii

  • DescriptionConvention

    Arguments for which you supply values are in italics.italic font

    Elements in square brackets are optional.[ ]

    Alternative keywords are grouped in braces and separated by vertical bars.

    { x | y | z }

    Optional alternative keywords are grouped in brackets and separated by vertical bars.

    [ x | y | z ]

    A nonquoted set of characters. Do not use quotation marks around the string or the string will include the quotation marks.

    string

    Terminal sessions and information the system displays are in

    screen

    font.

    screen

    font

    Information you must enter is in boldface screen font.

    boldface screen font

    Arguments for which you supply values are in italic screen font.

    italic screen font

    This pointer highlights an important line of text in an example.

    —>

    The symbol ^ represents the key labeled Control—for example, the key combination ^D in a screen display means hold down the Control key while you press the D key.

    ^

    Nonprinting characters, such as passwords are in angle brackets.

    < >

    Notes use the following conventions:

    Means reader take note. Notes contain helpful suggestions or references to material not covered in the publication.

    Note

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) viii

    Preface Conventions

  • Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

    Caution

    Means the following information might help you solve a problem.Tip

    Obtain Documentation and Submit Service Request For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthlyWhat’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

    http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

    Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Release 10.5(2) ix

    Preface Obtain Documentation and Submit Service Request

    http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

  • Cisco Unified Communications Manager SIP Line Messaging Guide (Standard), Rel

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